Suzuki EN125-2A, Service Manual

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ENGINE 3-12
UPPER END COMPONENTS INSPECTION AND SERVICING
After removing sealant (SUZUKI BOND No.1215)
from the fitting surface of the cylinder head cover,
place the cylinder head cover on a surface plate
and check for distortion with a thickness gauge.
Check points are shown in Fig.
Service limit 0.05 mm
If the distortion exceeds the limit, replace the
cylinder head cover and cylinder head.
ROCKER ARM SHAFT O.D.
Standard 11.966 11.984 mm
Measure diameter of rocker arm shaft.
ROCKER ARM I.D.
Standard 12.000 12.018 mm
When checking the valve rocker arm, the inside
diameter of the valve rocker arm and wear of the
camshaft contacting surface should be checked.
CAMSHAFT
The camshaft should be checked for runout and
also for wear of cams and journals if the engine
has been noted to produce abnormal noise or
vibration or a lack of output power. Any of these
m a l c o n d i t i o n s c o u l d b e c a u s e d b y a w o r n
camshaft.
CYLINDER HEAD COVER
DISTORTION
Micrometer
(0 25 mm)
09900-20205